Showerhead



FIG. 1 is a first perspective view of a showerhead showing our new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a first view thereof;

FIG. 5 is a second side view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear view thereof. 

The ornamental design for a showerhead, as shown and described. 